Radiant|Lab Grown|IGI

1.50ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG727587236

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG727587236

Diamond specifications and retailer prices

From €259 EUR
$289 USD
As of October 30, 2026
Save €2,033 EUR (89%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: €2,900 EUR at Brilliant Earth · As of October 23, 2026
View at Brilliant Earth

About this 1.5ct lab-grown radiant diamond

This 1.5ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG727587236 or 727587236. Listed at 26 retailers as of October 30, 2026, with a 786% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG727587236
Dimensions8.51 × 5.62 × 3.63 mm
L/W Ratio1.51
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.51 mm5.62 mm1.50 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG727587236
Side View
Table 63.0%Crown 42°Girdle: MediumPavilion 33.6°Culet: NoneDepth 64.6%

Caratlytics Score

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A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €2,900 EUR|Low: €248 EUR|High: €2,900 EUR|Avg: €1,003 EUR
Brilliant Earth
Retailer 2
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Retailer 25
November 1, 2026
Retailer 3€259 EUR
Retailer 23€300 EUR
Retailer 22€308 EUR
Retailer 25€320 EUR
Retailer 6€456 EUR
Retailer 16€470 EUR
Retailer 7€497 EUR
Retailer 14€553 EUR
Retailer 13€575 EUR
Retailer 20€608 EUR
Retailer 2€631 EUR
Retailer 9€696 EUR
Retailer 15€798 EUR
Retailer 19€824 EUR
Retailer 5€984 EUR
Retailer 4€1,137 EUR
Retailer 11€1,232 EUR
Retailer 17€1,282 EUR
Retailer 10€1,318 EUR
Retailer 18€1,369 EUR
Retailer 21€1,419 EUR
Retailer 8€1,472 EUR
Retailer 24€2,197 EUR
Retailer 12€2,291 EUR
Brilliant Earth€2,900 EUR

35 data points across 25 retailers

26 retailers€259 EUR to €2,291 EUR

A+
Cheapest Retailer
-
€259 EUR
$289 USD
A
Retailer 2
-
€300 EUR
$335 USD
View
A
Retailer 3
-
€308 EUR
$344 USD
View
Final sale: no returns
A
Retailer 4
-
€320 EUR
$358 USD
View
A
Retailer 5
-
€456 EUR
$510 USD
View
A
Retailer 6
-
€470 EUR
HK$4,100 HKD
View
A
Retailer 7
-
€497 EUR
$555 USD
View
A
Retailer 8
-
€553 EUR
$618 USD
View
A
Retailer 9
-
€575 EUR
View
A
Retailer 10
-
€608 EUR
ZAR 10,965 ZAR
View
A
Retailer 11
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€631 EUR
£555 GBP
View
A
Retailer 12
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€696 EUR
$778 USD
View
A
Retailer 13
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€798 EUR
$891 USD
View
A
Retailer 14
-
€824 EUR
A$1,416 AUD
View
B+
Retailer 15
-
€984 EUR
$1,099 USD
View
B+
Retailer 16
-
€1,137 EUR
$1,270 USD
View
B+
Retailer 17
-
€1,232 EUR
$1,376 USD
View
B+
Retailer 18
-
€1,282 EUR
$1,432 USD
View
B+
Retailer 19
-
€1,318 EUR
$1,473 USD
View
B+
Retailer 20
-
€1,369 EUR
SGD 2,067 SGD
View
B+
Retailer 21
-
€1,419 EUR
£1,248 GBP
View
Retailer 22
-
€1,472 EUR
A$2,530 AUD
View
Price last confirmed 27 days ago
B
Retailer 23
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€2,197 EUR
$2,455 USD
View
Retailer 24
-
€2,260 EUR
$2,525 USD
View
Price last confirmed 34 days ago
B
Retailer 25
-
€2,291 EUR
$2,560 USD
View
Most Expensive
Brilliant Earth
16223414Y · Oct 23
€2,900 EUR
$3,240 USD
View
Price last confirmed 9 days ago
25 more retailers have this diamond
Prices start from €259 EURSave up to €2,033 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A+
1.50ct Radiant
€259 EUR